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polet [3.4K]
3 years ago
13

Write an equivalent expression for 3x+12+7x+x

Mathematics
1 answer:
Anit [1.1K]3 years ago
5 0
<span><span><span><span>3x</span>+12</span>+<span>7x</span></span>+x</span>Combine Like Terms:<span>=<span><span><span><span>3x</span>+12</span>+<span>7x</span></span>+x</span></span><span>=<span><span>(<span><span><span>3x</span>+<span>7x</span></span>+x</span>)</span>+<span>(12)</span></span></span><span>=<span><span>11x</span>+12</span></span>Answer:<span>=<span><span>11x</span>+<span>12</span></span></span>
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What is the least common denominator of 1/4 and 2/5?
bixtya [17]

Answer:

20

Step-by-step explanation:

because 4 can go into 20 5 times without a remainder

4 0
2 years ago
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8 3/4 ÷ (-3 1/2) PLS I NEED HELP
Basile [38]

Answer:

you could have used a calculator

Step-by-step explanation:

-2.8

7 0
3 years ago
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5 = 1 and 5 in a fraction and w
vovangra [49]
What we want to do first is isolate the variable. To do this we need to multiply each side by 5 to remove the fraction

5 * 5 = 5* \frac{1}{5} w
    Simplify the right side
5 * \frac{1}{5} w = 1w
    Now simplify the left side
5 * 5 = 25
    Then we get...
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There's your answer!

7 0
3 years ago
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Use the circle graph to determine how many hours per day Becky spends on each activity.
Oduvanchick [21]
404 error: graph not found

anyway, the graph was not included. since the sleep time was included, I will assume that the circle graph is worth 24 hours

all we need to do is to convert the percentages to fractions and multiply that by 24 to find out how many hours per activity


percent means parts out of 100 so x%=x/100


so we have
School
Eating
Sleep
Homework
Free Time

School=25%
25%=25/100=1/4
1/4 times 24=6
School: 6 hours


Eating=10%
10%=10/100=1/10
1/10 times 24=2.4
Eating: 2.4 hours


Sleep=40%
40%=40/100=4/10=2/5
2/5 times 24=48/5=9.6
Sleep: 9.6 hours


Homework=10%
10%=10/100=1/10
1/10 times 24=2.4
Homework: 2.4 hours


Free Time=15%
15%=15/100=3/30
3/20 times 24=72/20=36/10=3.6
Free Time: 3.6 Hours

Answers:
School: 6 hours
Eating: 2.4 hours
Sleep: 9.6 hours
Homework: 2.4 hours
Free Time: 3.6 Hours


3 0
3 years ago
Y+1=-2x-3 in standard form
nignag [31]
Hope this answer is helpful for you

7 0
3 years ago
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